DRINKING WATER
4 Essential Truths About Carbon Reactivation
Long-standing myths about GAC reactivation are being increasingly challenged, revealing performance, cost, and sustainability benefits many utilities may have overlooked.
DRINKING WATER CASE STUDIES AND WHITE PAPERS
-
![process-water]( "Xylem Factory Recycles 100% Of Its Process Water")
Xylem Factory Recycles 100% Of Its Process WaterBy leveraging natural surroundings, Xylem’s manufacturing facility in Emmaboda, Sweden, can recycle 100% of the plant’s process wastewater with its new water treatment. The plant helps ensure a continuous supply of safe water, even in times of water scarcity, using Xylem’s water reuse technologies.
-
![REV-AFCSEMPER-TWOPHOTOS]( "AMERICAN Flow Control's Semper™ RPM With “Lift And Shift” Capability Helps Lowcountry Regional Water Resolve System Pressure Issues")
AMERICAN Flow Control's Semper™ RPM With “Lift And Shift” Capability Helps Lowcountry Regional Water Resolve System Pressure IssuesIn the summer of 2020, the Lowcountry Regional Water System in Hampton, South Carolina, had a customer located in an industrial park report a low water pressure issue. The company was a commercial laundry that served the hospitality industry and provided linens to hotels around the Hilton Head area. The low water pressure issue was causing the company’s heat recovery system to work improperly shortly before the July 4 holiday. In its first use of the AMERICAN Flow Control SEMPER™ Remote Pressure Monitor (RPM), Lowcountry Regional Water System deployed two units to resolve the issue. One device was located on the water system’s side of the meter and the other device was placed inside the company’s building, where water enters the facility at the backflow preventer.
-
![GettyImages-1196984424_east england]( "Pipeline Assessment Technology Helps English Water Utility Love Every Drop")
Pipeline Assessment Technology Helps English Water Utility Love Every DropIn response to a projection of future significant population growth in the area, a utility evaluated 7.2 km (4.5 miles) of an existing line between a reservoir and a treatment facility to determine if it could stand up to increased stress.
-
On The Rise: Quality Of Water, Quality Of Life — From Northeast U.S. To Central Africa
Bbanda is a small rural village of about 1,100 people in southern central Uganda, located 45 minutes from the closest town of Mityana. There is no electricity or reliable source of drinking water. But thanks to the work of some engineering students, that’s about to change.
-
![GettyImages-123519369_450_300]( "Go Beyond The Noise: Pressure Monitoring As The Key To Comprehensive Leakage Management")
Go Beyond The Noise: Pressure Monitoring As The Key To Comprehensive Leakage ManagementTo effectively tackle leakage, utilities must shift from reactive strategies to proactive, data-driven methodologies that enhance early detection, optimize pressure control, and reduce strain on aging pipelines.
-
Australian City Installs Microclor On‐Site Sodium Hypochlorite Generation System
Bathurst is the home of the Bathurst 1000 Race, the largest NASCAR-style “touring car” race in Australia. On race day, tens of thousands of additional visitors tax the capacity of the Bathurst 5 million-gallon-per- day wastewater treatment plant. The diligence and capability of the treatment staff allows the plant to meet the challenge every year.
-
![getty-491114280-queenstown]( "UV Water Treatment Plants For Microorganism Prevention")
UV Water Treatment Plants For Microorganism PreventionRecognizing the urgent need to ensure safe drinking water, the Queenstown Lakes District Council in New Zealand partnered with FILTEC to implement advanced UV water treatment solutions across key plants.
-
![Taste and Odor Compounds in Drinking Water (Fact Sheet)]( "Taste and Odor Compounds in Drinking Water")
Taste and Odor Compounds in Drinking WaterThe primary sources of taste and odor problems in drinking water are algae and bacteria. This fact sheet delves into the different kinds of compounds that cause taste and odor issues in drinking water.
-
![First-Time Customer Praises AMERICAN Flow Control’s Valves With ALPHA Ends For Quick Install And Time Saved]( "First-Time Customer Praises AMERICAN Flow Control's Valves With ALPHA Ends For Quick Install And Time Saved")
First-Time Customer Praises AMERICAN Flow Control's Valves With ALPHA Ends For Quick Install And Time SavedThe estimated 100-year-old small diameter water mains coming westward out of Manning, South Carolina, were beginning to show their age. So when it was determined the South Carolina Department of Transportation would soon be resurfacing SC Highway 261, the city knew it was the optimal time to replace these aging smaller mains. The mains serviced the Clarendon County Courthouse, City Hall, the elementary, middle and high schools and about 60 businesses along SC Highway 261.
-
![1195764431]( "Case Studies Make A Strong Case For Ozone Sidestream Injection")
Case Studies Make A Strong Case For Ozone Sidestream InjectionThis article will explore various SSI systems and the principal benefit that each setup delivers.
DRINKING WATER APPLICATION NOTES
-
Operations And LRV Calculations At Southwest Pipeline Project Drinking Water Treatment Facility4/14/2016
This presentation will discuss the operation of a 4 MGD pressurized two-stage Ultrafiltration (UF) plant over a 14 month period at the Oliver-Mercer-North Dunn (OMND) Drinking Water Treatment Facility, North Dakota.
-
Real-Time Conductivity Monitoring Estimates Chloride Levels In Minnesota Watershed By Using The Aqua TROLL 20011/18/2011Monitoring deicing chemical levels can help researchers, city governments, and regulatory agencies understand runoff impacts on surface water, groundwater, and surrounding environments.
-
LC-MS Analysis Of PFAS Compounds In EPA Methods 537.1, 533 And 832711/4/2021
The Ascentis Express PFAS HPLC column is designed for the separation of novel and legacy PFAS as per recent EPA methods. A specific PFAS delay column prevents background PFAS contamination from interfering with sample results in quantitative LC-MS methods.
-
(E)-2-Nonenal In Beer4/5/2015
Numerous compounds contribute to changes in beer flavor as it becomes stale. One of these compounds, (E)-2-nonenal, has been investigated as a major source of the papery/cardboard flavor that develops in aged beer.
-
The Role Of Zeta Potential In Water Treatment Process Control5/27/2020
Physical processes such as sedimentation, flotation and filtration remain at the heart of most process trains for the treatment of water and wastewater flows.
-
The Basics: Keeping Our Water Clean Requires Monitoring4/30/2014
Keeping the water in our lakes, rivers, and streams clean requires monitoring of water quality at many points as it gradually makes its way from its source to our oceans. Over the years ever increasing environmental concerns and regulations have heightened the need for increased diligence and tighter restrictions on wastewater quality.
-
Bridge Crossings And The Proper Use Of EX-TEND®, FLEX-TEND®, And Force Balanced FLEX-TEND Products11/1/2020
Of particular interest when it comes to bridges is the locating of pressurized water lines on and under bridge structures. Pressurized pipelines can present a number of unique challenges to the design engineer and utility owner.
-
Application Note: Using Real-Time Telemetry For Ecological Monitoring Of Coastal Wetlands2/3/2011The Grand Bay National Estuarine Research Reserve (NERR)in Mississippi is one of 27 protected estuarine reserves across the United States. By YSI
-
Waterworks Joints 10110/30/2025
There are many different joints that can be found on waterworks pipeline components. This paper focuses on the three most common joints.
-
The 'First Line Of Defense' In Protecting Membrane Filters8/9/2019
Multi-element, self-cleaning pretreatment filters optimize membrane filter life and production while minimizing maintenance and downtime.
DRINKING WATER PRODUCTS
Hydra-Stop is proud to introduce the Bevel Gear Actuator to our line of solutions for control, now available for purchase. Ideal for shallow bury applications, the Bevel Gear Actuator allows for the operation of horizontal Insta-Valve 250 installations on lines as shallow as 12-18 inches."
The OPTIMASS 6400 is the standard high performance Coriolis mass flowmeter for the process industry. The twin bent tube meter offers superior performance and high accuracy in virtually any application: From process control in (petro)chemical applications to concentration measurements in the food and beverage industry to custody transfer filling and transport measurements in the oil and gas industry. Its high-end options also make the OPTIMASS 6400 the optimum device for cryogenic media like Liquefied Natural Gas (LNG) with temperatures down to -200°C / -328°F as well as applications involving high operating temperatures (up to 400°C / 752°F) or pressures (up to 200 barg / 2900 psig).
Proprietary Composite Spiral Element. Available in Fiberglass and Netting Wrap configurations. Anti-Telescoping Device (ATD) both ends. Brine seal (one end) - Fiberglass Wrap only.
LeakFX is a data analysis tool for water utilities to quickly summarize, categorize, and prioritize suspected water leaks in their distribution system. This new tool saves water utilities hours of individual logger analysis every day. Instead of selecting logger by logger to view leak information, LeakFX combines all suspected leaks in one streamlined report.
Endress+Hauser is committed to your business, for improved plant performance.
WRT's Z-92® process is the most effective and environmentally responsible choice you can make for removing uranium from drinking water and the community. That's because after removing the uranium, we dispose of it at a licensed facility
LATEST INSIGHTS ON DRINKING WATER
-
![Reservoir spillway dumping overflow-GettyImages-2152233125]( "Applying Two Flood Models To Cross-Check And Improve Each Other — And Maybe Saving A Downstream Village In The Process")
Getting a second opinion is a time-tested piece of wisdom. During a recent project for a municipal water supply utility, we found that this advice also applies to modeling the effects storms have on the municipality’s reservoirs and dams, and the potential flooding impacts downstream of the dams.
-
![Research, probing, monitoring atmosphere-GettyImages-987881424]( "How Satellite IoT Can Enhance Remote Water System Monitoring")
There is a noticeable shift in how monitoring data is being treated across the water sector. It is no longer something that sits quietly in the background of operations, collected for compliance, and reviewed periodically. It is being examined more closely, and more often, by a wider set of stakeholders.
-
![ozone production]( "Mass Transfer Efficiency: The Most Important Metric In Ozone System Design")
Ozone output doesn’t guarantee performance. Learn how mass transfer efficiency determines how much ozone dissolves, drives treatment results, and impacts energy use and system design.
-
![Cahaba River-GettyImages-2152826831]( "What Is The Future Of Source Water Protection?")
Water utility managers and municipal leaders have long struggled amid the convergence of several threats to public water supplies. During a recent Water Online Live event, I sat with a panel of industry experts to examine the transition from reactive crisis management to a proactive, adaptive resilience framework. -
![Bacteria, Medical research, healthcare-GettyImages-2161239007]( "The Hidden Legionella Risk In Closed-Loop Systems")
For a long time, it’s been assumed that closed-loop water systems — those commonly found in building heating systems, air-conditioning units, and cooling systems — are at a low risk for Legionella. However, there are many reasons why closed-loop systems can actually inadvertently promote the risk of Legionella. -
![Avoid pitfall Planning, obstacle avoidance-GettyImages-2167644498]( "Common AMI Implementation Mistakes And How To Avoid Them")
The journey from manual water-meter reads to a fully integrated digital ecosystem is long and complex. To help utilities along, the Smart Water Networks Forum (SWAN) released the global Smart Metering Playbook, which includes both implementation best practices and common pitfalls. Here are five common advanced metering infrastructure (AMI) rollout mistakes from the Playbook, along with examples of how to overcome them.
DRINKING WATER VIDEOS
Stanford Earth’s Rosemary Knight recently spearheaded a project to map underground freshwater resources and forecast the intrusion of saltwater into aquifers beneath the California coastal town of Marina.
Water utilities need reliable data to meet regulatory demands, manage operations, and deliver excellent customer service. Master Meter’s Allegro AMI and Allegro Mobile technologies offer smart, scalable solutions to support these needs. Allegro AMI provides hourly data on consumption, tampering, and leaks, automatically sent to the utility office.
Discover how specialized restrained joints facilitate efficient horizontal directional drilling and bridge piping through a simplified, tool-free assembly process that ensures long-term reliability.
ABOUT DRINKING WATER
In most developed countries, drinking water is regulated to ensure that it meets drinking water quality standards. In the U.S., the Environmental Protection Agency (EPA) administers these standards under the Safe Drinking Water Act (SDWA).
Drinking water considerations can be divided into three core areas of concern:
- Source water for a community’s drinking water supply
- Drinking water treatment of source water
- Distribution of treated drinking water to consumers
Drinking Water Sources
Source water access is imperative to human survival. Sources may include groundwater from aquifers, surface water from rivers and streams and seawater through a desalination process. Direct or indirect water reuse is also growing in popularity in communities with limited access to sources of traditional surface or groundwater.
Source water scarcity is a growing concern as populations grow and move to warmer, less aqueous climates; climatic changes take place and industrial and agricultural processes compete with the public’s need for water. The scarcity of water supply and water conservation are major focuses of the American Water Works Association.
Drinking Water Treatment
Drinking Water Treatment involves the removal of pathogens and other contaminants from source water in order to make it safe for humans to consume. Treatment of public drinking water is mandated by the Environmental Protection Agency (EPA) in the U.S. Common examples of contaminants that need to be treated and removed from water before it is considered potable are microorganisms, disinfectants, disinfection byproducts, inorganic chemicals, organic chemicals and radionuclides.
There are a variety of technologies and processes that can be used for contaminant removal and the removal of pathogens to decontaminate or treat water in a drinking water treatment plant before the clean water is pumped into the water distribution system for consumption.
The first stage in treating drinking water is often called pretreatment and involves screens to remove large debris and objects from the water supply. Aeration can also be used in the pretreatment phase. By mixing air and water, unwanted gases and minerals are removed and the water improves in color, taste and odor.
The second stage in the drinking water treatment process involves coagulation and flocculation. A coagulating agent is added to the water which causes suspended particles to stick together into clumps of material called floc. In sedimentation basins, the heavier floc separates from the water supply and sinks to form sludge, allowing the less turbid water to continue through the process.
During the filtration stage, smaller particles not removed by flocculation are removed from the treated water by running the water through a series of filters. Filter media can include sand, granulated carbon or manufactured membranes. Filtration using reverse osmosis membranes is a critical component of removing salt particles where desalination is being used to treat brackish water or seawater into drinking water.
Following filtration, the water is disinfected to kill or disable any microbes or viruses that could make the consumer sick. The most traditional disinfection method for treating drinking water uses chlorine or chloramines. However, new drinking water disinfection methods are constantly coming to market. Two disinfection methods that have been gaining traction use ozone and ultra-violet (UV) light to disinfect the water supply.
Drinking Water Distribution
Drinking water distribution involves the management of flow of the treated water to the consumer. By some estimates, up to 30% of treated water fails to reach the consumer. This water, often called non-revenue water, escapes from the distribution system through leaks in pipelines and joints, and in extreme cases through water main breaks.
A public water authority manages drinking water distribution through a network of pipes, pumps and valves and monitors that flow using flow, level and pressure measurement sensors and equipment.
Water meters and metering systems such as automatic meter reading (AMR) and advanced metering infrastructure (AMI) allows a water utility to assess a consumer’s water use and charge them for the correct amount of water they have consumed.